采用无线电单独测量的编队卫星相对轨道自主确定

在实际工程应用中,编队卫星由于任务的要求使得部分测量设备(例如,激光设备)不可用,这就造成系统的观测性下降。文章将条件数应用于编队卫星系统的可观测度的定量计算;并针对编队卫星进行轨道机动时仅采用无线电进行测量的工况,采用强跟踪离散卡尔曼滤波(UKF)算法进行仿真计算。仿真结果表明该方法具有很强的跟踪能力,并且鲁棒性、稳定性和精度与常规UKF算法相当。

Autonomous Determination of Relative Orbit for Satellite Formation Flying Using Radio-only Measurement

In practical applications,some measurement equipment(such as laser) of satellite formation flying can not be used for mission requirements,which led to the decline in observability.The condition number was used in quantitative calculation of the observability in satellite formation flying system.For satellite formation flying orbit adjustment situation,which only used radio measurement,a strong tracking unscented Kalman filter(UKF) algorithm was introduced to the simulation.The results show that the method has strong tracking capability,robustness and stability.Moreover,a strong tracking UKF algorithm has similar accuracy with that of the normal UKF algorithm.